Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.
Reference Materials, Matrix Modifiers for GFAA, CRM, VHG, Promochem
Supplier: LGC Standards PROMOCHEM
This solution is intended for use as a matrix modifier for graphite furnace atomic absorption spectroscopy (GFAA) in the determination of trace elements.
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Impurity and API standard, methyl [(RS)-(diphenylmethyl)sulphinyl]acetate
Supplier: LGC Standards PROMOCHEM
Organic Standard, Methyl [(RS)-(diphenylmethyl)sulphinyl]acetate
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Pesticide reference standard, δ-BHC 100 µg/ml in methanol
Supplier: AccuStandard
Organic Standard, δ-BHC 100 µg/ml in methanol, Pack type: Glass bottle
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Pesticide reference standard, Endrin 100 µg/ml in methanol
Supplier: AccuStandard
Organic Standard, Endrin 100 µg/ml in methanol, Pack type: Glass bottle
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Lead-zinc ore, reference standard, NCS
Supplier: LGC Standards PROMOCHEM
Lead-zinc ore
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Organic reference standard, Cefotaxime sodium, Ph.Eur., RS
Supplier: EDQM
Organic Standard, Cefotaxime sodium, Pack type: Vial
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Organic reference standard, Hyoscine butylbromide, Ph.Eur., RS
Supplier: EDQM
Organic Standard, Hyoscine butylbromide, Pack type: Vial
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Organic reference standard, Pentamidine diisetionate, Ph.Eur., RS
Supplier: EDQM
Organic Standard, Pentamidine diisetionate, Pack type: Vial
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Ginkgo biloba (extract), NIST-3247
Supplier: LGC Standards PROMOCHEM
This standard reference material is intended primarily for use in validating analytical methods for the determination of flavonoids, terpene lactones and toxic elements in ginkgo biloba extracts and similar matrices. It can be also used for quality assurance when assigning values to in-house control materials.
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Organic reference standard, Naphazoline impurity A, Ph.Eur., RS
Supplier: EDQM
Organic Standard, Naphazoline impurity A, Pack type: Vial
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Organophosphorus pesticide mix (16 components), european formulation
Supplier: Restek
Contains 16 components, those are acephate, azinphos methyl, chlorpyrifos, demeton-s-methyl, dichlorvos, dimethoate, ethion, malathion, methamidophos, methidathion, omethoate, pirimiphos methyl, profenofos, prothiofos, pyrazophos and tolclofos-methyl.
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Elemental analysis standards, flint clay - constituent elements, NIST-97B
Supplier: LGC Standards PROMOCHEM
This standard reference material is intended for use in the determination of constituent elements in clay and material of similar matrix. Powdered clay was air-dried, ball-milled and blended to ensure homogeneity.
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Di-n-octyl phthalate-[ring-D4] 100 µg/ml in n-nonane (98% D)
Supplier: LGC Standards PROMOCHEM
Organic Standard, Di-n-octyl phthalate-[ring-D4] 100 µg/ml in n-nonane (98% D), Pack type: Glass bottle
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Reference materials, acid number standards, in hydrocarbon oil, VHG
Supplier: LGC Standards PROMOCHEM
These reference materials are intended for use in the determination of acid number (AN) in petroleum products in accordance with ASTM D664/IP 177 (by potentiometric titration) or ASTM D974 (by colour-indicator titration).
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Bromide standard for ISE calibration, Orion™
Supplier: Thermo Orion
Bromide standard solution, 0,1M, Orion™, Application: ISE Calibration
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Reference standards, gypsum
Supplier: LGC Standards PROMOCHEM
Certified reference materials (CRM) for gypsum and its constitutents.
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Pesticide reference standard, 4,4'-TDE 100 µg/ml in methanol
Supplier: AccuStandard
Organic Standard, 4,4'-TDE 100 µg/ml in methanol, Pack type: Glass bottle
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Yttrium standard solution, for ICP-MS, Pure Plus grade
Supplier: PerkinElmer
Single element standard is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.
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Selenium standard solution, for ICP-MS, Pure Plus grade
Supplier: PerkinElmer
Single element standard is supplied with a comprehensive Certificate of Analysis that documents the quality and reliability.
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Impurity and API standard, 2-Bromo-N-[4-bromo-2-(pyridin-2-ylcarbonyl)phenyl]acetamide
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2-Bromo-N-[4-bromo-2-(pyridin-2-ylcarbonyl)phenyl]acetamide
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Organic reference standards, tinidazoles, Ph. Eur., RS
Supplier: EDQM
Organic Standard, Tinidazole impurity A, 2-methyl-5-nitro-1H-imidazole
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Density standards, ultra pure water
Supplier: Anton Paar
Density standard, ultra-pure water, 5×10 ml, with certificate
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Pesticide reference standard, (±)-α-BHC 100 µg/ml in methanol
Supplier: AccuStandard
Organic Standard, (±)-α-BHC 100 µg/ml in methanol, Pack type: Glass bottle
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Holmium Oxide Solution for Wavelength Control
Supplier: CPACHEM
Holmium oxide solution for wavelength control acc. 2.2.25 of Ph Eur
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Reference standards, nitrogen standard set, CRM, VHG
Supplier: LGC Standards PROMOCHEM
These calibration standards are intended for use in the determination of low level nitrogen by ASTM Method D4629.
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Organic reference standard, Perindopril for stereochemical purity, Ph.Eur., RS
Supplier: EDQM
Organic Standard, Perindopril for stereochemical purity, Pack type: Vial
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Reference standards, biodiesel/diesel fuel Blends
Supplier: LGC Standards PROMOCHEM
These standards are intended for use as calibration and reference standards for the determination of fatty acid methyl esters (FAME) biodiesel content in diesel fuel by infrared (IR) spectroscopy. They are formulated specifically for use with ASTM Method D7371 and EN 14078.
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Impurity and API standard, 5-Methyl-5-phenylpyrimidine-2,4,6(1H,3H,5H)-trione
Supplier: LGC Standards PROMOCHEM
Organic Standard, 5-Methyl-5-phenylpyrimidine-2,4,6(1H,3H,5H)-trione
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Organic reference standard, N-methyl-bis[beta-(2-pyridyl)ethyl]amine trihydrochloride, BP
Supplier: LGC Standards PROMOCHEM
Organic Standard, N-methyl-bis[beta-(2-pyridyl)ethyl]amine trihydrochloride
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Calibration standard, single element, indium for AAS and ICP-OES, pure grade
Supplier: PerkinElmer
Until 10th October 2017 it is still allowed to use mercury thermometers if they are exclusively intended to be used for tests as per standards which require the usage of mercury thermometers.
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Supplier: EPPENDORF
Supplier: Integra
Supplier: OZ BIOSCIENCES
Supplier: VWR Collection
Supplier: Corning
Supplier: SenseAnywhere
Supplier: Integra
Supplier: NANOENTEK
Supplier: VWR Collection
Supplier: Integra
Supplier: Testo
Supplier: Sartorius
Supplier: SenseAnywhere
Supplier: Quantabio